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<TITLE>JavaScript Source Code 3000:  Calculators:  Multiply X By X</TITLE>
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<META NAME="date" CONTENT="2000-09-09">
<META NAME="channel" CONTENT="Web Developer">
<META NAME="author" CONTENT="JavaScript Source Code 3000">
<META NAME="section" CONTENT="Calculators">
<META NAME="description" CONTENT="This is a very limited and very simple calculator - that only does multiplication. This is a neat example to help you 'analyze' the JavaScript and hopefully begin to learn it.">

<SCRIPT LANGUAGE="JavaScript">
function  doMath() {
var one = eval(document.theForm.elements[0].value)
var two = eval(document.theForm.elements[1].value)  
var prod = one  *   two
alert("The product of "  +  one  +  " and "  +  
two  +  " is "  +  prod  +  ".")
}
// End -->
</SCRIPT>
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<b><A HREF="../index.htm" /" TARGET="_top">
Home</A> </b><img src="../img/arrow.gif" /img/arrow.gif" height=13 width=7 border=0 alt="}"> <b><A HREF="index.htm" /calculators/"><font color="#FF0000">Calculators</font></A> </b>
<img src="../img/arrow.gif" /img/arrow.gif" height=13 width=7 border=0 alt="}"> <FONT COLOR="#006666">Multiply X by X</FONT></b></FONT><BR>
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<!-- Description --><!--content_start-->

This is a very limited and very simple calculator - that only does multiplication. This is a neat example to help you 'analyze' the JavaScript and hopefully begin to learn it.
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<!-- Demonstration -->
<CENTER>
<FORM NAME="theForm">Multiply
<INPUT TYPE="text"> By <INPUT TYPE="text">
<INPUT TYPE="button" VALUE="Show result" onClick="doMath()">
</FORM>
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<P>
<a name="source">
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<tr><td BGCOLOR=yellow><font FACE="helvetica,arial,geneva"><b>JavaScript Source Code 3000:  Calculators:  Multiply X By X</b>
<p>Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Apple-s).  The script is yours!!!<br><br></font></td></tr>
<tr><td BGCOLOR=yellow ALIGN=CENTER>
<form NAME="copy">

<DIV align="center">
<input type=button value="Highlight All" onClick="javascript:this.form.txt.focus();this.form.txt.select();">&nbsp;&nbsp;&nbsp;&nbsp;
<INPUT TYPE="text" NAME="total" VALUE="Script Size:  0.98 KB  " size="24">
</DIV>

<textarea NAME="txt" ROWS=20 COLS=75 WRAP=VIRTUAL>

&lt;!-- TWO STEPS TO INSTALL MULTIPLY X BY X:

   1.  Paste the designated code into the BODY of your HTML document
   2.  Put the last script into the BODY of your HTML document  --&gt;

&lt;!-- STEP ONE: Copy this code into the HEAD of your HTML document  --&gt;
		  
&lt;HEAD&gt;

&lt;SCRIPT LANGUAGE="JavaScript"&gt;

&lt;! &gt;
&lt;! &gt;

&lt;!-- Begin
function  doMath() {
var one = eval(document.theForm.elements[0].value)
var two = eval(document.theForm.elements[1].value)  
var prod = one  *   two
alert("The product of "  +  one  +  " and "  +  
two  +  " is "  +  prod  +  ".")
}
// End --&gt;
&lt;/SCRIPT&gt;

&lt;!-- STEP TWO:  Put this script into the BODY of your HTML document  --&gt;

&lt;BODY&gt;

&lt;CENTER&gt;
&lt;FORM NAME="theForm"&gt;
Multiply
&lt;INPUT TYPE="text"&gt;
 By 
&lt;INPUT TYPE="text"&gt;
&lt;INPUT TYPE="button" VALUE="Show result" onClick="doMath()"&gt;
&lt;/FORM&gt;
&lt;/CENTER&gt;

 

&lt;!-- Script Size:  0.98 KB  --&gt;
</textarea><br><font FACE="helvetica,arial,geneva"></font></td></tr>

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</form>
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